Chelsea Zimmerman
Chelsea Zimmerman is an Acute Care Nurse Practitioner in Mission Viejo, CA, registered under NPI 1003315854.
Getting there
Here is what surrounds this office in Mission Viejo, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 0.27 mi away. There is EV charging 0.39 mi from the office (Mission Viejo - Crown Valley Parkway Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 667 ft away, served by Medical Center-Ent Mission Hospital.
Getting here and what is nearby
Parking 328 ft ~2 min
26862 Crown Valley Parkway, Mission Viejo 92691
Parking 468 ft ~2 min
26732 Crown Valley Parkway, Mission Viejo 92691
Transit Medical Center-Ent Mission Hospital 544 ft ~3 min
Transit Medical Center/Mission Hospital Entrance Northbound 568 ft ~3 min
Transit Medical Center-Ent Mission Hospital 667 ft ~3 min
Restaurant Paul's Pantry 0.24 mi ~5 min
27407 Bellogente, Mission Viejo 92691
Restaurant Chili's 0.25 mi ~5 min
27409 Bellogente, Mission Viejo 92691
Parking 0.27 mi ~6 min
264 The Shops At Mission Viejo, Mission Viejo 92691
Convenience 76 0.29 mi ~6 min
26411 Crown Valley Parkway, Mission Viejo 92691
Gas station 76 0.30 mi ~7 min
Convenience ampm 0.31 mi ~7 min
27682 Crown Valley Parkway, Mission Viejo 92691
Gas station Arco 0.33 mi ~7 min
27682 Crown Valley Parkway, Mission Viejo 92691
EV charging Tesla Supercharger 0.34 mi ~7 min
EV charging 0.35 mi ~8 min
Gas station Chevron 0.35 mi ~7 min
27742 Crown Valley Parkway, Mission Viejo 92691
Restaurant The Habit Burger Grill 0.38 mi ~8 min
EV charging Mission Viejo - Crown Valley Parkway Supercharger 0.39 mi ~8 min
Grocery Crown Valley International Market 0.50 mi ~11 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 95008564 | CA | Acute Care Nurse Practitioner primary |
This provider holds licence 95008564 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Order And Referring Only - Nurse Practitioner
- PAC ID
- 9436596434
- Enrollment ID
- I20240410000879
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003315854 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 7, 2018 |
| Last updated | Jun 21, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
27700 MEDICAL CENTER RD Mission Viejo, CA 92691 (949) 364-1400 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 3 | 1 | 5 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 1 | 1 | 8 | 1 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.